Apple Macintosh PowerBook 145 - Manual (Page 266)

Networks
You can’t find or can’t open icons needed to set up
file sharing.
m One or more icons may be in the wrong place. Make sure that
the Sharing Setup icon is in the Control Panels folder, and that
the File Sharing Extension file, the Network Extension file, and
the AppleShare file are in the Extensions folder. (Both folders
are inside the System Folder.)
m Some network software may not be installed correctly. Use
the Installer to install the appropriate network software.
The shared disk you want to connect to does not appear in
the Chooser window.
m AppleTalk must be active before you can use a shared disk.
Make sure that AppleTalk is active in the Chooser.
m If your network has zones, the shared disk you want may not
be in the currently selected zone. Make sure the correct zone
is selected.
m The computer that the disk is on must be turned on before
the disk can be shared. Make sure that computer is on.
m The shared disk may be temporarily unavailable. Wait a few
moments to see if its name appears in the Chooser.
m There may be a problem with the network. Check with your
network administrator.
250 Quick Reference